after opening the photo and making all the software is cropping the image (if the photo was i portrait i will only see half of the image) is there a reason for this ?
That sounds like a bug. Can you tell us what version of Acorn you're using (it's listed in the About box), as well as what version of Mac OS you're running?
the Acorn version is 4.5.5 (10031) and i have OSX Yosemite version 10.10.5
Can you let me know if Acorn 5 has the same problem for you?
You can grab it from here: http://flyingmeat.com/download/Acorn-5.6.6.zip
Thanks, with Acorn 5 i have no problem.